LED Tester | Christmas Light Tester - LISUN

Introduction In the contemporary world of electrical and electronic product design, IP (Ingress Protection) ratings serve as a crucial metric for assessing the capability of device enclosures against external elements such as dust and water. These standards are essential for ensuring product durability and safety across various environmental conditions. The IP rating system consists of two digits: • The first digit indicates the level of protection against solid foreign objects (ranging from 0 to 6), reflecting its ability to prevent solids like dust from entering. • The second digit represents the degree of protection against liquids (ranging from 0 to 9), indicating how well it resists water ingress. For “IPX5”, the “X” signifies that there has been no testing or requirement for dust protection, while the “5” denotes the specific water resistance level. Technical Definition of IPX5 Water Resistance Rating IPX5 specifies that the equipment can withstand “water jets from any direction ...

Introduction As LED lighting technology continues to advance rapidly, the demand for precise performance testing of lighting products has grown significantly, particularly for key metrics such as luminous flux, colorimetric parameters, and luminous efficacy. The LPCE-2 (LMS-9000) LED CCD Rapid Photometric and Electrical Comprehensive Testing System, developed by LISUN, is a state-of-the-art testing platform that integrates a high-precision spectroradiometer, an integrating sphere, and an electrical parameter meter. This system is widely used in the research, production, and quality control of LED luminaires. Central to its capabilities is the 3 meter integrating sphere, a critical component that enhances the system’s ability to perform accurate photometric measurements. This article explores in detail the technical principles, functional features, application scenarios, and industry impact of the 3 meter integrating sphere within the LPCE-2 (LMS-9000) system, emphasizing its role in ad...

Introduction In recent years, the global transition toward sustainable energy has accelerated, with electric vehicles (EVs) playing a central role in reducing carbon emissions and dependence on fossil fuels. As the core component of EVs and hybrid electric vehicles (HEVs), power lithium-ion batteries must meet increasingly stringent requirements in terms of performance, safety, and consistency. Among the various parameters used to evaluate battery quality, internal resistance stands out as one of the most critical indicators for assessing battery health status (SOH), power output capability, thermal management efficiency, and long-term reliability. To address the growing demand for high-precision, high-speed, and non-destructive testing solutions in battery manufacturing, Shanghai LISUN has developed the LS556X series of high-voltage, high-precision battery internal resistance testers, collectively known as the Shanghai LISUN Battery Tester. This innovative product line combines advanc...

Introduction In today’s fast-paced industrial environment, the demand for rapid, accurate, and non-destructive analysis of precious metals has become increasingly critical. Industries such as jewelry appraisal, bullion trading, electronic waste recycling, and luxury goods authentication require reliable on-site testing solutions that can deliver immediate results without damaging valuable samples. Traditional laboratory-based methods are often too slow or impractical for field use, creating a strong need for portable and efficient metal analyzers. The “Shanghai LISUN Gold Machine Tester”, developed by Shanghai Lisun Instrument Co., Ltd., is a high-performance portable X-ray fluorescence (XRF) spectrometer specifically designed for the detection of gold, silver, platinum, palladium, and other precious metals. This advanced instrument enables users to perform precise, real-time elemental analysis in a variety of environments, from pawnshops and jewelry stores to customs checkpoints and m...

Abstract Electromagnetic Compatibility (EMC) testing plays a pivotal role in ensuring that electronic devices operate reliably within their intended electromagnetic environment without causing or being affected by electromagnetic interference. One of the key pieces of equipment used in EMC testing is the lightning surge generator provided by Shanghai LISUN Electronics Co., Ltd. This device is specifically designed to simulate transient overvoltage phenomena, whether naturally occurring such as lightning strikes, or those induced by human activities like switching operations. It enables manufacturers to evaluate the resilience of their products against extreme voltage surges, which are critical stress factors in real-world applications. This article delves into the functionalities and technical characteristics of the Shanghai LISUN lightning surge generator, exploring its essential role within an EMC test laboratory. It also outlines how this equipment contributes to compliance with int...

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Abstract With the rapid advancement of power electronics technology, electric motors have become indispensable components across various industries including manufacturing, transportation, and household appliances. However, during operation, these motors are often subjected to transient overvoltage events known as surges. These surges can originate from lightning strikes, switching operations, grid disturbances, or electrostatic discharges, posing significant risks to motor performance and system integrity. To ensure both safety and reliability, comprehensive surge testing has evolved into a critical process in product development, quality control, and regulatory compliance. This article provides an in-depth exploration of the technical features, functional advantages, and real-world applications of the electric motor surge tester developed by Shanghai LISUN, a leading manufacturer in the field of electrical testing equipment. The LISUN motor surge tester offers high-precision measurem...